Event: Calderdale 30 23/24

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Opponent Rating Result
David Shapland 0 1 - 0
Richard Porter 0 ½ - ½
performance = (sum(opponents ratings) + 400(wins-losses)) / games

200 = (0 + 400 * (1 - 0)) / 2)

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Opponent Rating Result
David A Patrick 0 ½ - ½
Bien Cuaresma 0 1 - 0
David C Wedge 0 ½ - ½
Adam Smith 0 1 - 0
Vivien Webster 0 1 - 0
Alec Ward 0 0 - 1
S Brittain 0 1 - 0
performance = (sum(opponents ratings) + 400(wins-losses)) / games

171 = (0 + 400 * (4 - 1)) / 7)